Is this car pc a good one?

Hi all,
Found this car pc,is this a good one??Pls give me some advice?
CAR PC DVD GPS TV Radio Bluetooth CDC Reversing for Nissan Tiida

http://www.onvon.com/radio-bluetoo [...] l?skey=c02
Main Functions

DVD Compatible Disc DVD,DVD-RW,DVD+RW,DVD-R, DVD+R,DIVX,AVI,MP4,MP3,JPEG
Radio AM/ FM digital tune, can save 120 stations
GPS Built-in GPS navigation
USB/SD All have USB port and SD card slot in front except Toyota Camry(With External USB)
Digital TV External DVBT Tunner(Optional)
Analog TV(Option) Built-in TV tuner, compatible with PAL/ NTSC/ SECAM TV system
Reversing Built-in reversing guide line
CDC Compatible with Sanyo CDC
Bluetooth Version 2.0
Features

Windows CE Operation,
With soft keyboard for inputing,can be connected with
External Mouse
Wireless Internet connected with GPRS Modem
Built in Office file Viewer
Built in GPS
Bluetooth connectivity
In dash DVD Loader
AM/ FM digital tune, can save 120 stations
Back video input.
Digital TV with external DVBT Box(TV Box is Optional)
Analog TV tunner built in (Option)
CDC Slot
USB&SD Slot
built-in 4 x 45W high power output amplifier
Original factory wiring harness and connector
Full function remote control Real time display
Steering control smart match, Intelligent
Steering control learning
Play music and video while NAVI or Surfing Internet